Home / 13,807.22-20,663.42-8,540.19

Finding the Fourth Proportional to 13,807.22, 20,663.42 and 8,540.19

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Solution

The fourth proportional to 13,807.22, 20,663.42 and 8,540.19 is: 12,780.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.22 : 20,663.42 = 8,540.19 : x
  2. Step 2: Convert to fraction form
    13,807.22/20,663.42 = 8,540.19/x
  3. Step 3: Cross multiply
    13,807.22x = 20,663.42 × 8,540.19
  4. Step 4: Simplify right side
    13,807.22x = 176,469,490.15
  5. Step 5: Solve for x
    x = 176,469,490.15/13,807.22
  6. Step 6: Final answer
    x = 12,780.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.